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Finding the Fourth Proportional to 12,321.68, 18,483.48 and 4,530.48

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Solution

The fourth proportional to 12,321.68, 18,483.48 and 4,530.48 is: 6,796.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,321.68 : 18,483.48 = 4,530.48 : x
  2. Step 2: Convert to fraction form
    12,321.68/18,483.48 = 4,530.48/x
  3. Step 3: Cross multiply
    12,321.68x = 18,483.48 × 4,530.48
  4. Step 4: Simplify right side
    12,321.68x = 83,739,036.47
  5. Step 5: Solve for x
    x = 83,739,036.47/12,321.68
  6. Step 6: Final answer
    x = 6,796.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.